To provide a recording paper which is excellent not only in printability for a high-speed inkjet printer but in offset printing suitability and which does not bond at ordinary conditions but is quasi-bondable when attached by pressure under given conditions.
A pressure adhesive sheet is provided which has a quasi-bondable, pressure-sensitive adhesive layer on at least one surface of a base material. The surface of the above pressure-sensitive adhesive layer has a print surface tackiness (adhesion) of ≤0.5 N measured after 60 seconds after printing when the printing is conducted using an offset ink having a tackiness value of 6±0.5 at 400 rpm measured by a digital Inkometer and conducted under the conditions of a printing pressure of 200 N and an ink amount of 1.34±0.02 g/m2. Further, the value, i.e. Stoeckigt sizing degree (s)/basis weight (g/m2), of the above pressure-sensitive adhesive layer surface before the printing is 0.08-0.6 (s×m2/g).
TAKEBAYASHI KUNIAKI